code: def test_noop(self) -> None:
      self.assertIsNone(
          SummaryWriterContext.add_scalar("test", torch.ones(1))
      )
  
file_path: ReAgent/reagent/test/base/test_tensorboardX.py
imports: import unittest
  from tempfile import TemporaryDirectory
  from unittest.mock import call, MagicMock
  import torch
  from reagent.core.tensorboardX import summary_writer_context, SummaryWriterContext
  from reagent.test.base.horizon_test_base import HorizonTestBase
  from torch.utils.tensorboard import SummaryWriter
label_desc: Use image node_id 1 for calling the TestSummaryWriterContext obj's underlying member method code with example usage: obj.test_noop() without return types